05/05/2006
Should You Repair Your Old Car After a Failed MOT?
Booking your car in for its annual MOT can be a nerve-wracking experience. The worst-case scenario, the one that often plays on your mind, is being told that your beloved vehicle is no longer roadworthy and that the cost of repairs will exceed its market value. While it's tempting to keep pouring money into a car you've grown fond of, there comes a point when even the most cherished old banger has to be retired. This article delves into the decision-making process after a failed MOT, examining factors to consider and highlighting some older models that have historically struggled to pass the test.

The UK's MOT test is a crucial annual check designed to ensure vehicles are safe and environmentally compliant. Each year, millions of British motorists face the prospect of their car failing this essential inspection. While the overall pass rate has seen an increase, with reports suggesting it has risen from 60% to 71.4% over the past decade, this still means a significant number of vehicles require attention. The average age of a car on UK roads is also on the rise, currently sitting around nine years old. This suggests that many owners are looking to keep their vehicles running for longer, but age inevitably brings with it potential mechanical issues.
Understanding whether to repair an older car after a failed MOT involves a careful assessment of several factors. These include the cost of repairs versus the car's current market value, the likelihood of future failures, and your personal circumstances. Sometimes, a minor repair can keep your car on the road for another year, but if the issues are extensive, it might be more economical to consider a replacement.
Assessing the Damage: What Does a Failed MOT Mean?
A failed MOT typically signifies that your vehicle does not meet the minimum safety and environmental standards required by law. Common reasons for failure include issues with:
- Brakes: Worn brake pads, discs, or fluid leaks are critical safety failures.
- Lights: Malfunctioning headlights, brake lights, or indicators can lead to a fail.
- Tyres: Insufficient tread depth, damaged sidewalls, or incorrect tyre pressures are common culprits.
- Suspension: Worn shock absorbers, springs, or steering components can compromise handling and safety.
- Exhaust Emissions: A failing catalytic converter or other exhaust system issues can lead to an environmental fail.
- Visibility: Cracked or obscured windscreens, and faulty windscreen wipers or washers.
- Structure: Significant corrosion or damage to the vehicle's chassis or bodywork can be a major safety concern.
The test centre will provide a detailed report outlining the specific reasons for the failure. It's important to understand the severity of each issue. Some failures are minor and relatively inexpensive to fix, while others can be indicative of deeper, more costly problems.
Repair vs. Replace: Making the Difficult Decision
When faced with a failed MOT, the decision to repair or replace hinges on a few key considerations:
1. Cost of Repairs:
Obtain a detailed quote for the necessary repairs. Compare this cost to the current market value of your car. Websites like Parkers or Auto Trader can provide an estimate of your car's worth. If the repair costs approach or exceed the car's value, it might be time to consider a replacement.
2. Age and Condition of the Car:
An older car, even after repairs, may be more prone to future failures. If your car is already showing significant signs of wear and tear, investing in repairs might be a temporary solution. Consider how much longer you realistically expect the car to last.
3. Future MOTs:
If the current failure is due to multiple, significant issues, it's probable that the car will face further problems in subsequent MOT tests. This can lead to a continuous cycle of expensive repairs.
4. Your Driving Needs:
Consider your daily driving requirements. If you only use your car for short, infrequent journeys, a less reliable vehicle might suffice. However, if you rely on your car for commuting or long distances, investing in a more dependable vehicle is advisable.
5. Environmental Impact:
Older cars often have higher emissions than newer models. Replacing an old, polluting car with a more fuel-efficient or electric vehicle can be a positive step for the environment.
Models with a History of MOT Failures
While any car can fail an MOT, some older models have shown a consistent tendency to struggle with the test. This can be due to a combination of age, design, and the availability of parts. This Is Money has reported on models that have historically performed poorly in MOT tests. While specific pass rates can fluctuate, these models serve as a cautionary tale:
| Model | Years Covered | Reported Pass Rate (%) | Notes |
|---|---|---|---|
| Chevrolet Lacetti | 2005 - 2011 | 48.9 | Used as the 'reasonably priced car' on Top Gear. Production ceased in 2011. |
| Peugeot 307 | 2001 - 2007 | 48.6 | Out of production for nearly two decades, making even newer models very old. |
| Chevrolet Aveo | 2008 - 2015 | 48.4 | A newer model on the list, but still showing a low pass rate. |
| Chevrolet Kalos | 2005 - 2008 | 47.6 | Chevrolet's third entry, with a declining pass rate. |
| Citroen Grand C4 Picasso | 2007 - 2013 | 47.6 | The second generation (2014-2018) has a much higher pass rate (67.8%). |
| Daewoo Matiz | 1998 - 2005 | 47.5 | An older city car with a significant failure rate. |
| Dodge Caliber | 2006 - 2009 | 47.2 | One of the less popular cars on the list, with few still in use. |
| Citroen C8 | 2003 - 2010 | 46.5 | A spacious but ageing MPV from the noughties. |
| Peugeot 807 | 2002 - 2010 | 46.1 | Shares components with the Citroen C8, also showing poor MOT performance. |
| Mitsubishi Space Star | 1999 - 2005 | 45.3 | One of the oldest models on the list, with a very low pass rate. |
It's worth noting that these figures are based on specific reporting periods and can change. However, they highlight a trend that owners of these particular models might want to be aware of when considering repairs after a failed MOT.
What to Do Immediately After a Failed MOT?
If your car fails its MOT, you will be given a 'Refusal of an MOT Test Certificate' (VT30) which lists the reasons for failure. You can continue to drive your car only if the existing MOT certificate is still valid and the car does not have any 'dangerous' defects. If it has dangerous defects, you cannot legally drive it on the road until the defects are repaired. You can take your car to a different garage for repairs, but it must be re-tested before the expiry of the original MOT certificate. Alternatively, you can take it back to the original garage for the repairs and a re-test.
Frequently Asked Questions (FAQs)
Q1: Can I drive my car if it fails its MOT?
You can drive your car if its existing MOT certificate is still valid and the new failure does not contain any 'dangerous' defects. If it has dangerous defects, you must not drive it until it has been repaired.
Q2: How long do I have to get repairs done after a failed MOT?
There is no legal time limit for completing repairs. However, you cannot drive the car on public roads if it has dangerous defects, or if its existing MOT has expired.
Q3: Where should I get repairs done?
You can have repairs done at any garage. For a re-test, you can either return to the original MOT test centre or take it to another centre. If you take it back to the original centre within 10 working days, often only a partial re-test is required, which may be free of charge.
Q4: What if the repair cost is very high?
If the cost of repairs is substantial and approaches or exceeds the car's market value, it's usually more economical to consider replacing the vehicle. Get a second opinion or a quote from another reputable mechanic.
Q5: Are there any grants or schemes to help with car repairs or replacement?
While there aren't widespread government grants specifically for MOT repairs or car replacement for the general public, some local authorities or environmental schemes might offer incentives for scrapping older, more polluting vehicles and purchasing newer, cleaner ones. It's worth checking with your local council or for specific scrappage schemes that may be running.
Ultimately, the decision to repair an old car after a failed MOT is a financial and practical one. By carefully assessing the costs, the car's condition, and your own needs, you can make an informed choice that keeps you safely on the road, whether that's in your trusty old car or a newer, more reliable model.
If you want to read more articles similar to Old Car Fails MOT: Repair or Scrap?, you can visit the Motoring category.
